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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 21

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post #201 of 9531
Has anyone got their i7-2700k to 5Ghz? I'm currently at 4.7Ghz with offset voltage at 1.20v
C3 off
C6 off
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post #202 of 9531
Quote:
Originally Posted by Lucky 23 View Post

I would say your Vcore is too high. You going to need a negative offset to bring it down because you should be able to get 4ghz stable around 1.2v or so. I would just kick the multi up to 45 and leave the +0.005 offset then you go from there
I would disable C3 and C6 because those put the cpu into a deep sleep and could cause stability issues. I also disabled virtualization and no execute.
Dram voltage for DDR3 is usually 1.5v or 1.65v. I know by default mine would show 1.529 but if your ram is rated at 1.5v you can set it at 1.499/1.5v. You should also manually set your timings or change to the XMP profile because usually auto puts your timings a lot higher then they are supposed to be.

Thanks Lucky 23, I followed all your advice. I pushed the Multipler to 45.

Idle (No tests)
VCore: 0.976v
Temp: ~30C

During Prime95 Test
VCore: ~1.296v (highest 1.304v)
Temp: ~60C

You said my VCore was too high so I lowered the offset.
450

Let me know what you think?

(If all is good, I have achieved my goal - Thanks dude:thumb:)
Edited by soflyj - 3/30/12 at 10:42am
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post #203 of 9531
well one full test on P95 whether its blend or Small FFT is around 20+ tests. I would see if you can get through the first full test w/ the -0.005 offset that you set in bios. If you can then try taking it down to a -0.010 offset and see if it passes the first test again and keep going till you can pass the first full test. It will help determine the lowest voltage you can run off of then you can start doing P95 for a few hours and slowly upping the offset.

Eventually you will need to run P95 for a few hours for it to be considered stable. I would do at least 6 hours
Edited by Lucky 23 - 3/30/12 at 12:36pm
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post #204 of 9531
I'm new to overclocking but Ive been going off of this guide for the most part.

I'm running on a ASRock Extreme3 Gen3 with an i7 2700k and 8 gigs of mem

My offset voltage is still at the original setting of +0.005 with a core multiplier at 45. My max Temperature is 62 degrees. My Core Voltage according to CPU-Z is steady at 1.288 V.

After reading these forums, my voltage seems low from what everyone else is aiming at and I'm curious if this is ok or not? I haven't seen how high my core speeds with go and stopped at a core multiplier of 45 because I assumed this was high enough for general gaming.

Does this seem stable with how low my voltage is or is it good?

Thanks guys!
post #205 of 9531
Not sure if this was brought up in this thread, since I haven't read through this whole thing. But when I set my DRAM Command Rate to N1, I always crash. It's fine though when I leave it on Auto.
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post #206 of 9531
Quote:
Originally Posted by Lucky 23 View Post

... Dram voltage for DDR3 is usually 1.5v or 1.65v. I know by default mine would show 1.529 but if your ram is rated at 1.5v you can set it at 1.499/1.5v. You should also manually set your timings or change to the XMP profile because usually auto puts your timings a lot higher then they are supposed to be.
My new ram did the same thing on auto but it seemed like XMP was enabled and set it that way. On auto it came up with 11-11-11-26.
I set my ram manually per manufacture's spec to 9-9-9-24-2N. GSkill reccomends setting your timmings manually as well.

Interesting thing this morning and about a half hour after I did my 45, one hour blend test windows blue screened on me while doing nothing but browsning this forum. I didn't get to see the error code as it made the memory dump and went away too quick. I haven't changed any settings yet and it hasn't happened since either.



Quote:
Originally Posted by Phry View Post

Not sure if this was brought up in this thread, since I haven't read through this whole thing. But when I set my DRAM Command Rate to N1, I always crash. It's fine though when I leave it on Auto.
Is this your ram? If so set your timmings to 8-8-8-24-2N with 1.499 volts.


Quote:
Originally Posted by Lucky 23 View Post

well one full test on P95 whether its blend or Small FFT is around 20+ tests. I would see if you can get through the first full test w/ the -0.005 offset that you set in bios. If you can then try taking it down to a -0.010 offset and see if it passes the first test again and keep going till you can pass the first full test. It will help determine the lowest voltage you can run off of then you can start doing P95 for a few hours and slowly upping the offset.
Eventually you will need to run P95 for a few hours for it to be considered stable. I would do at least 6 hours
I have my Vcore running at -0.020. I went on down to -0.025 but windows froze on me at that setting.
Edited by Turtley - 3/30/12 at 5:45pm
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post #207 of 9531
I've had this system for two weeks now and just discovered the CMOS switch on the back of the mobo. Awesome. I built my own on my DS3 system. Even with this board on the bench, with my poor vision (only partial vision in one eye) it's been very challenging fiddling with the jumper. Nice going ASRock (along with the push-button power and reset switches). Those are long-overdue features that most enthusiast mobos should have.

Lucky, I'm trying your settings verbatim. Gonna see how it goes. I'm running OCCT and prime.

BTW, I'm curious about temps. Under load (prime, OCCT), my core temps are running in the mid-50s, but my cputin temp is 42C. Are others getting the same temps?

marty
Edited by tootercomputer - 3/30/12 at 5:50pm
post #208 of 9531
^ Yea, I like the push buttons as well including the led readout. I've never had a motherboard with them before.
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post #209 of 9531
Quote:
Originally Posted by Turtley View Post

^ Yea, I like the push buttons as well including the led readout. I've never had a motherboard with them before.

I had (still have actually) a biostar AMD 64-era mobo with a power switch on the mobo itself. But that's it. Yeah, these are really nice features.

marty
post #210 of 9531
Quote:
Originally Posted by Turtley View Post

Interesting thing this morning and about a half hour after I did my 45, one hour blend test windows blue screened on me while doing nothing but browsning this forum. I didn't get to see the error code as it made the memory dump and went away too quick. I haven't changed any settings yet and it hasn't happened since either.

I have my Vcore running at -0.020. I went on down to -0.025 but windows froze on me at that setting.

You probably got a blue screen at idle because your idle voltage is too low. At stock idle voltage is around .96+ but w/ an offset of -0.025 its a lot lower

So now -0.025 offset is way too low because windows freezes and -0.020 offset is too low for idle so you will probably have to try a -0.015 or -0.010 but you will still need to stress it longer because 30min is not enough.
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